Heermann's Gull vs Arctic Herring Gull
Larus heermanni verglichen mit Larus smithsonianus
Side-by-Side Comparison
| Merkmal | Heermann's Gull | Arctic Herring Gull |
|---|---|---|
| Wissenschaftlicher Name | Larus heermanni | Larus smithsonianus |
| Ordnung | Charadriiformes | Charadriiformes |
| Familie | Laridae | Laridae |
| Erhaltungsstatus | Near Threatened | Least Concern |
| Länge | — | — |
| Flügelspannweite | 67,2 cm (26.5 in) | 85,9 cm (33.8 in) |
| Gewicht | 448,26666666666665 g (15.81 oz) | 1108,0 g (39.08 oz) |
| Ernährung | -- | -- |
| Gelegegröße | 1-2 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Gemeinsame Lebensräume
Heermann's Gull only
-
Arctic Herring Gull only
Erhaltungsstatus
Near Threatened
Heermann's Gull
Least Concern
Arctic Herring Gull
About These Birds
Heermann's Gull
Heermann's Gull, 46–51 cm, is distinctive — dark grey body, white head (breeding), red bill. Breeds almost entirely on Isla Rasa in the Gulf of California, then disperses north along the Pacific coast to British Columbia. Kleptoparasite; steals fish from Brown Pelicans. Near Threatened; range highly restricted.
Arctic Herring Gull
Arctic Herring Gull, 55–66 cm, breeds across Arctic North America and winters on all coasts of the US. Formerly lumped with European Herring Gull; darker-eyed on average, slightly more northerly range. Omnivore and scavenger; abundant at fishing ports, dumps, and beaches in winter.